3.7 Cronbach alpha

Internal consistency test (Table 6) can be proved by the exact Cronbach alpha values. The Cronbach alpha are as follows: KLM (X1) is 0.770, ISN (X2) is 0.951, MDS (X3) is 0.809, and PAR (Z1) is 0.914. The criteria for internal consistency are therefore met [25].
